speculation swirling at google about one of the world's richest men. Sergei bren has split from his wife of six years. And now, reportedly dating a younger employee. It's raising questions about workplace double-standard. Abc's cecilia vega has that story for us. Reporter: He's one of the world's richest men. One of the founders of one of the most powerful companies in silicon valley. But this morning, google's sergei bren is rocking the tech world. He has separated from his wife of six years and reportedly dating a google exec, a woman some 14 years younger. Anytime word leaks about a big boss and a subordinate, it's embarrassing for the can company. It's embarrassing for everybody involved. Reporter: Google will not confirm or deny the alleged romantic relationship between brin and the flow employee. But a representative tells abc news, the couple has, quote, been living apart for months. And remain good friends and partners. His net worth, estimated nearly $23 billion. And the google ties in the family run deep. His wife's sister is also a google big wig, who rented the garage where they created the infamous search engine. Google may have a reputation for being the perfect place to work. With perks like free food, volleyball, chess, pool, even massages. But what happens when the boss may be having a relationship with a subordinate? A cording to google's code of conduct, if the woman does not report to him, he may not be breaking any official rules. It brings up accusations of favoritism. What does it take for me to get noticed around here? Do I have to sleep with my boss in order to get ahead? That's something no employee wants to face. Reporter: Google offers this advice to all employees. When faced with a potential conflict of interest, ask. Would this activity embarrass google or me if it showed up on the front page of a newspaper or blog? And that, we found, by googling it. For "good morning america," cecilia vega, abc news, los angeles.

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